---
title: 'Testing'
description: 'Learn how to test your contributions to Nile Auth'
---

## Overview

### Types of Tests

- Unit Tests
- Integration Tests
- End-to-End Tests
- Performance Tests

## Unit Testing

### Writing Unit Tests

```typescript
// Example unit test
import { describe, it, expect } from 'vitest';
import { validateEmail } from '../utils/validation';

describe('validateEmail', () => {
  it('should validate correct email format', () => {
    expect(validateEmail('test@example.com')).toBe(true);
  });
});
```

### Test Coverage

- Aim for 80% or higher coverage
- Focus on critical paths
- Test edge cases

## Integration Testing

### Setting Up Integration Tests

```typescript
// Example integration test
import { describe, it, expect } from 'vitest';
import { AuthClient } from '../client';

describe('AuthClient', () => {
  it('should authenticate user', async () => {
    // Placeholder test implementation
  });
});
```

### Test Environment

1. Configure test database
2. Mock external services
3. Set up test fixtures

## End-to-End Testing

### E2E Test Setup

```typescript
// Example E2E test
import { test, expect } from '@playwright/test';

test('user can sign in', async ({ page }) => {
  // Placeholder E2E test
});
```

### Running E2E Tests

1. Start test environment
2. Execute test suite
3. Generate reports

## Performance Testing

### Load Testing

```typescript
// Example load test
import { check } from 'k6';
import http from 'k6/http';

export default function () {
  // Placeholder load test
}
```

### Benchmarking

- Response times
- Concurrent users
- Resource usage

## Test Best Practices

### Writing Tests

- Keep tests focused and simple
- Use descriptive test names
- Follow AAA pattern (Arrange, Act, Assert)
- Mock external dependencies

### Test Organization

```
tests/
├── unit/
├── integration/
├── e2e/
└── performance/
```

## Continuous Integration

### CI Pipeline

1. Run linting
2. Execute unit tests
3. Run integration tests
4. Perform E2E tests
5. Check coverage

### Test Automation

```yaml
# Example GitHub Actions workflow
name: Tests
on: [push, pull_request]
jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      # Placeholder CI steps
```

## Debugging Tests

### Common Issues

- Async timing problems
- Test isolation
- Environment setup
- Flaky tests

### Tools and Techniques

- Test debugger
- Logging
- Snapshot testing
- Test runners

## Best Practices

- Write tests before code (TDD)
- Keep tests maintainable
- Use test fixtures
- Document test requirements

## Related Topics

- [Development Guide](/auth/contributing/develop)
- [Issue Reporting](/auth/contributing/report)
- [Contributing Overview](/auth/contributing/develop)
